I got enough money to buy incendiary grenades. One per spawn but I got decent at burning my enemies. Very satisfying screams and audio. Video games bring out the sick in us.
Then I bought a rifle. Decent results.
Then I learned to hack capsules. That made me consistently one of the highest point getters in battle.
Then I got a grenade launcher to take the place of my pistol. A few suicides but I mainly killed them.
Then I got enough to get a very high power, accurate machine gun. The "drawback" is it does burst rather than fully auto.
I'm learning. And I'm dangerous. Helghast forever!